File Coverage

blib/lib/Config/Find/Unix.pm

Criterion	Covered	Total	%
statement	48	102	47.0
branch	18	78	23.0
condition	0	9	0.0
subroutine	8	14	57.1
pod	2	5	40.0
total	76	208	36.5

package Config::Find::Unix;

use strict;
use warnings;

use Carp;
use File::HomeDir;
use Config::Find::Any;

our @ISA=qw(Config::Find::Any);

sub app_dir {
    my ($class, $name)=@_;
    $name=$class->guess_script_name
    unless defined $name;

    my $ename = uc($name).'_HOME';
    return $ENV{$ename}     if (exists $ENV{$ename});

    $class->parent_dir($class->guess_script_dir);
}

sub _my_home {
    my $home = File::HomeDir->my_home;
    return $home            if defined $home;

    my ($user, $dir) = (getpwuid $>)[0, 7];

    return $dir             if defined $dir;
    return "/home/$user"    if defined $user;
    return "/"
};

sub system_temp { '/tmp' }

sub _var_dir {
    my ($class, $name, $more_name, $scope) = @_;

    if ($scope eq 'global') {
        $class->my_catfile('/var', $name, $more_name);
    } elsif ($scope eq 'user') {
        File::Spec->catfile(_my_home(), '.'.$name, 'var', $more_name);
    } elsif ($scope eq 'app') {
        $class->my_catfile($class->app_dir($name), 'var', $more_name);
    } else {
        croak "scope '$scope' is not valid for var_dir method";
    }
}

sub _bin_dir {
    my ($class, $name, $more_name, $scope) = @_;

    if ($scope eq 'global') {
        '/usr/bin';
    } elsif ($scope eq 'user') {
        File::Spec->catfile(_my_home(), 'bin');
    } elsif ($scope eq 'app') {
        File::Spec->catfile($class->app_dir($name), 'bin');
    } else {
        croak "scope '$scope' is not valid for bin_dir method";
    }
}

sub _lib_dir {
    my ($class, $name, $more_name, $scope) = @_;

    if ($scope eq 'global') {
        '/usr/lib';
    } elsif ($scope eq 'user') {
        File::Spec->catfile(_my_home(), 'lib');
    } elsif ($scope eq 'app') {
        File::Spec->catfile($class->app_dir($name), 'lib');
    } else {
        croak "scope '$scope' is not valid for lib_dir method";
    }
}

sub look_for_file {
    my ($class, $name, $write, $global)=@_;
    my $fn;

    if ($write) {
        if ($global) {
            my $fnwe=$class->add_extension($name, 'conf');

            unless ($class->is_one_liner) {
                my $etc=File::Spec->catfile($class->app_dir($name), 'etc');
                return File::Spec->catfile($etc, $fnwe) if -e $etc;

                $etc=File::Spec->catfile($class->app_dir($name), 'conf');
                return File::Spec->catfile($etc, $fnwe) if -e $etc;
            }

            return File::Spec->catfile('/etc', $fnwe);
        }

        return File::Spec->catfile(_my_home(), ".$name");

    } else {

        # looks in ~/.whatever
        unless ($global) {
            $fn=File::Spec->catfile(_my_home(), ".$name");
            return $fn if -f $fn;
            for my $ext (qw(conf cfg)) {
                return "$fn.$ext" if -f "$fn.$ext";
            }
        }

        for my $fnwe (map {$class->add_extension($name, $_)} qw(conf cfg)) {
            unless ($class->is_one_liner) {
                # looks in ./../etc/whatever.conf relative to the running script
                $fn=File::Spec->catfile($class->app_dir($name), 'etc', $fnwe);
                return $fn if -f $fn;

                # looks in ./../conf/whatever.conf relative to the running script
                $fn=File::Spec->catfile($class->app_dir($name), 'conf', $fnwe);
                return $fn if -f $fn;
            }

            # looks in /etc/whatever.conf
            $fn=File::Spec->catfile('/etc', $fnwe);
            return $fn if -f $fn;
        }
    }

    return;
}

sub look_for_helper {
    my ($class, $dir, $helper)=@_;
    my $path=File::Spec->catfile($dir, $helper);
    -e $path
        or croak "helper '$helper' not found";
    ((-f $path or -l $path) and -x $path)
        or croak "helper '$helper' found at '$path' but it is not executable";
    return $path
}

sub look_for_dir_file {
    my ($class, $dir, $name, $write, $global)=@_;
    my $fn;

    if ($write) {
        my $fnwe=$class->add_extension($name, 'conf');
        if ($global) {
            unless ($class->is_one_liner) {
                my $etc=File::Spec->catfile($class->app_dir($dir), 'etc');
                return File::Spec->catfile($etc, $dir, $fnwe) if -e $etc;

                $etc=File::Spec->catfile($class->app_dir($dir), 'conf');
                return File::Spec->catfile($etc, $dir, $fnwe) if -e $etc;
            }

            return File::Spec->catfile('/etc', $dir, $fnwe);
        }

        return File::Spec->catfile(_my_home(), ".$dir", $fnwe);

    } else {
        # looks in ~/.whatever
        for my $fnwe (map {$class->add_extension($name, $_)} qw(conf cfg)) {

            unless ($global) {
                my $fn=File::Spec->catfile(_my_home(), ".$dir", $fnwe);
                return $fn if -f $fn;
            }

            unless ($class->is_one_liner and not defined $dir) {
                # looks in ./../etc/whatever.conf relative to the running script
                $fn=File::Spec->catfile($class->app_dir($dir), 'etc', $dir, $fnwe);
                return $fn if -f $fn;

                # looks in ./../conf/whatever.conf relative to the running script
                $fn=File::Spec->catfile($class->app_dir($dir), 'conf', $dir, $fnwe);
                return $fn if -f $fn;
            }

            # looks in system /etc/whatever.conf
            $fn=File::Spec->catfile('/etc', $dir, $fnwe);
            return $fn if -f $fn;
        }
    }

    return;
}

1;

__END__